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8., v., M. AND 1. saamr TYPE MAKING MACHINE. APPLICATION FILED OCT. 2h 191B.

Patented Aug. 5,1919.

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8., V., M. AND J. SERRA.

TYPE M'AKiNG MACHINE. APPUCATION FILED ocT. 21. I918.

Patented Aug. 5, 1919.

6 SHEETS-SHEET 3 9., v.,. M. AND J. SERBAZ TYPE MAKING MACHINE APPLKIM'ION FILED OCT. 21. IEHB.

Patented Au 5, 1919.

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8., v., M. AND 1. SERRA.

TYPE MAKWG MACHINE.

APPLICATION FILED OCT. 21 I918- Pat-entedAug. 5, 1919 5 SNEETS-SHEET 5.

B., V. M. AND I. SERRA. TYPE MAKING MACHINE.

APPLICAHON HLED 0CT.2I.19IB.

1,3 12,362. Patented Aug. 5, mm.

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UNITED STATES PATENT OFFICE.

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BUENOS sums, ARGENTINA. v

run-manna MACHINE.

Specification of Letters Intent.

Patented Aug. 5, 1919.

Application filed October :1, 101:. Serial Io. same.

To all whom it may concern:

Be it known that we, BABTOLOME Snails,

VICENTE Senna, Mam-non Senna and Jose Sauna, subjects of the King of Italy, residing at Buenos Aires, Ar entina, have invent: ed certain new and use 1 Improvements in Type-Maid? Machines, of which the following is a specification.

' The pr t invention refers to improve ments in linot pe, monotype, and in general, all machines or casting type and has for its object to provide certain improvements in the ovens of the same, which permit oi the melting:of the metal by means of electric current.

The present invention has for a further object the melting of the metal in the crucibles of linotype machines etc. of any of the types or marks in use, by means of electricity, employing for this crucibles and oven of t e, machines and adapting thereto the special appliances which constitute the improvement in accordance with the present invention, appliances which are easily interchan ble and which permit, if so required, 0 a return being made in the operation of the said oven and crucibles, to the methods previously employed, viz. by means 'of the heat generated y gas or naphtha.

Among other advantages the present invention comprises that of being easily applicable to all existing machines, without the necessity of any vital modification and solely by the adaptation thereto of electrical appliances of simple description and economical o oration. Another advantage is that alrea y mentioned of the possibility of returning to the previous system of heating by sim ly removing the electrical appliances which have been attached. r

In order that the invention may be clearly understoodand easily operated, it has been represented by wa of example, as applied to a linotype machineof the kind designated as N o. 8, in the attached drawings, it being evident that it may be equally adapted to the other types of linotype machines, such as. for instance Nos. 3 and 5 of the type called Canadian.

In the said drawings:'--

Figure 1 is a vertical transverse section of an oven of the usual type of a linotype 'machine.

Fig. 2 is a view from above, of the melturpose the same ing pot, in which the cover has been eliminated in order to show the crucible and the heating apparatus.

Fig. 1s a view of the lower portion of the crucible, free from its fittin 1n the pot and acket, and in which the eating apparatus 1s shown in position with its corresponding clamps.

. Fig. 4 is a drawing showing the disposition of the conductor in the auxiliary electrical apparatus pertaining to the inside of the crucible and the conductors which run to the contact late.

Fig. 5 is a view om above of the heating apparatus proper, and contact late. 1g. 6 1s a front view of t e apparatus illustrated in Fi along the line 5, showin the section of the eel figure.

a portion of the iron late remo ed in order to show the disposition'of the mica plates and resistance wires.

Fig. 8 shows the internal dis osition of the resistance wire of the rapid eating apparatus inside the crucible. F ig- 9 is a view from above of the rapid heating apparatus.

Fig. 10 is a front view of the same with a portion of the iron plate removed to show the resistance wire and the mica plate.

Fig. 11 is a side view of the same.

Fig. 12 shows the disposition of the reslstance wire in the heating apparatus external to-the crucible.

Fig. 13 is a view in perspective of the external heating apparatus, ready to be placed in position.

Fig. 141s the same seen from below, with a portion of the iron plate removed to show the disposition of the resistance wires.

Fig. 15 is a top view of the auxiliary heating apparatus of the mouth piece.

Fig. 16 is a sectional view along o-p of Fig. 15, and finally Fig. 17 is a diagrain of the connections of the electrical heating apparatus described.

In all the said figures the same reference letters and numbers indicate the same or corresponding parts.

With reference now to the said figures,

" A is the usual cast iron cover of the pot. and

crucible, B being the external jacket and C the crucible proper in which the metal is crucible, for containing the metal. E is the n l H space through which the metal is pressed is formed by an iron late I which form the and F the conduit along which the molttm. bottom of the heater. Upon th's bottom metal runs coming out at the mouth piece plate is laced a sheet of asbestos II in order or outlet 1H is the sauce between the to prevent the enetration in a downward 5 jacket B and the crucible which space, as direction of the lieat generated by the resist- :usual, is filled with asbestos or otheiunsuance, and upon this asbestos sheet are placed lating substance, M is the iron plate wh ch two sheets of mice III and III between supports the asbestos and N alInB whic which is placed the resistance IV formed by joiu'the pot B to the linotipe machine. All a Nikcrom conductor of 0.40 in/m. o.

0 the parts described u to t e present are the By means of connections represented, the usual ones employ in the linotype masaid resistance is also connected with the chines of the various tylpes in use, and to contact plate I, as may be clearly seen in the these parts are adapted e improv d applidiagram in Fig. 17. The resistance IV is ances n accordance with the present nvenconnected with a wire ac, which is connected 15 tion, which lpermit of theme of electric curwith the bolt am. The resistance IV is also so ren for m ting the metal in the interior of connected with a wire ad connected with a crucible C. I bolt ae. The iron plate I is adapted in its These additional a pliances com rise as general configuration to the shape of the sentially: the rapid ectri c heater placed crucible C on the outside of its base. The

20 in the in "r of. the crucible; another auxb t h t 11, employed i order i iii electi'zic heater J laced also inside t e vent the heat from penetrating down to the crucible 0; an externa electric l oatin aplevel of the linotype machine proper, may be paratus L arranged on the outside 0 the of any suitable thickness, it being neverthesaid crucible C beneath the conduit F, and less preferable to use a sheet of 2 m/m.

2& y ennui-diary electric heating a p thickness, which is the thickness most adapthis P ffll' iihb conduit F and outlet I able to the apparatus, is the g neral plate where the electric con- In order to maintain the outlet G at a moti ns made with the various electric suitable temperature, an auxiliary electric ea in; D heater P is employed, as has already been 30 With reference to the auxiliary electric stated, this heater being shown in detail in heating apparatus inside the crucible C, Figs. 15 and 16 of the attached drawings. -i 'epresented in detail in Figs. 4 to 7 inclu- This heater is formed by an external iron rive, a and any are the connecting bolts, 6 plate 24-, referably lm/miithickness, upon and b are iron plates, preferably .6- m/m. which is laced a sheet of"asbestos 'v of 2 as thick, in the space between which are placed m/m. thic ness in order to prevent the esmica sheets .a and c, which nsulate he cape of the heat in a direction contrary to resistance formed by the Nilrcrom WlI'B d, of that of the outlet G of the crucible C. Z is 0.40 m/m. 9, arranged as shown 1 1g- 4- a sheet of mica and W is a resistance formed 9 and g are the conductors-of electric mm by a Nikcroni wire of 0.20 m/m. q: placed 40 rent and e the bolts by means of which thebetween the sheet of asbestos and the sheet general contact late is ailixed to the part f of mica. Theresistance 'w is connected with of the heater. e wire is connected to a wires ac and of. The wire ae is connected bolt a and wire g to the it am. This anxwith the bolt am and the wire of with the iliary heater is placed inside the crucible 0, bolt ag, in turn connected with the bolt 0 by 45 close to the internal vertical walls of the a wire ah. The shape of this heater is same and ado ts, as regards the metal plates adapted to that of the outlet G referred to.

b and b a su sta-ntially semi -circular form. The resistance W is joined by means of con- Inside the said auxiliary heater is arnections to the contact plate I as may be ranged the rapid heater K which is specially clearly seen-in the diagram in Fig. 17.

50 illustrated in Figs. 8 to If inclusive. In the -With reference to this latter figure J, K, said heater Z and l are the iron plates and Land P are the electric heaters which have n and n are mica sheets between which is just been described, represented by their placed the wire-m which forms the resistrespective resistances. I is the general conance. r and r' are the conductors which tact plate. 00 isa commutator with four 55 'oin the said resistance to the contact late points, of which 1 is the dead point, 2 that V The wire 7* is connected with the be t an: which establishes connection with the heater and wire 1" with a bolt c6. 1" is the sup- X, 31bit .which connects with the heater L port to which is afiixed the saidcontact 'and lthat connecting with the auxiliary plate I. As more clearl shown in-Figs. 8 heaters J and K. In is a tripolar inter- 60 and 9, the inner heater 1% embodies a transrupter for the direct feeding of all the heat- 1'25 verse member a, inclosing a resistance a, ing apparatus. Fu are thefusesin V p d connected in series with the wire 1'. in the general conductors and suitably cal-' The external heater of the crucible C, desculated, and finally In is the neral inter- ;finated by L in the general figures and r ter. The manner in whic the cqnnw 65 Wn specially in Figs. 12 to 14 inclusive, t1 us are arranged is clearly seen in the drawings and does not in any way constitute a feature of the invention, being within the reach of any person possessing a knowledge of electricity.

The general arrangement of the a paraitus and its application to the ovens of linotype machines havin now been described, the manner in whic it operates will be explained.

The various heaters K, J, L and P havmg been placed in position as described and illustrate the metal is placed in the cavity of the crucible C, destined for the purpose, it being preferable if possible to fill the said receptacle with metal alread liquid or with small lines of linotype. he interrupter In is then placed in circuit (Fig. 17-) leavin the commutator Ca in the position 1- the circuit at the interrupter In. In this manner all the electric heating appliances enter into action. In the example illustrated the consumption is 7 ampcres at 220 volts of continuous current and 6.5 ampercs at 220 volts alternating current, or 1540 watts per hour. In this manner the metal melts progressively, arrivin in 45 to 55 minutes at a temperature of rein 570 to 600 degrees Fahrenheit, when it is ready to be used. When this moment has arrived the heat generated is excessive for the roper working of the machine, for whic reason the electric circuit is then cut at the interrupter In and 'the heat is graduated by means of the commutator Co.

When it is desired to work only with the heat generated by the internal heater K, which keeps the metal at a temperature between 550 and 600 degrees Fahrenheit, with out theheating of the outlet and suitable for a fast operator and short line work, the commutator is moved to the point 2, with an approximate consumption of 600 to 630 watts per hour.

When it is desired to work only with the external heater L, which maintains the metal between 520 and 560 degrees Fahrenheit and c osi'n :and also heats theout'let, suitable for slow and long line work, the commutator is moved to the point 3 with an approximate oonsum tion of 600 Fina in order to work with t e auxiliary heaters J and P, suitable for intermittent work and which maintain the metalbetween 490 and 520 degrees Fahrenheit,'the commutator Co is moved to the point 4, with an approximate consumption of 450 to 520 watts per hour. 7

All these changesmay he made at will and without disturbing the working of the machine, as the various switches are placed to 630 watts er'hour.

where they can be moved conveniently by the operator of the machine.

When the crucible C is loaded with cold metal, the melting of same can be assisted by interposing. for a terrupter In.

The fitting of the electrical ap liances described does not require any a teration in the shape of the pots, crucibles and other parts accesso to the linoty whatever may e its type or mar for which reason the invention may be easily adapted foall machines at present in use, which may also be operated by gas or naphtha as up to the present, it being this purpose to remove ap aratus L.

t is evident that various modifications of construction or detail may be introduced without thereby departing from the of the invention, whose essential features are clearly determined in the claim which follows this specification.

Having thus specifically described and dethe electric heating termined the nature of the present invention as and the manner of its operation, we declare 1 that what we claim as our invention and exclusive right is The combination with the melting pot of a linotype machine,- of a dash-pot disposed within said melting pot in s aced relation thgg eto and having an incline throat which is ,iiaceii from the top of the dash-pot, an

approximately vertical double walled m tallic casing arranged within the melting pet and bein longitudinally cur ved into an approximate y semi-circular form to partly surround the dash-pot and adapted to be lifted out of the melting pot, an auxiliary transverse double walled metallic casing secured to the first named metallic casing and disposed upon the opposite side of the dashpot near its top and contacting with the inclined threat. a resistance arranged within each double walled metallic casing and insulated therefrom, an approximately vertical member connected with the first named double walled metallic casing and extendingabove and extcriorly of the melting pot and servin double wal ed metallic casin s, and electric terminals connected with t e upstanding member and having electrical connection' with the resistances.

In testimony whereof we aliix our signatures.

BARTOLOME SERRA. VICENTE SERRA. MELCHOR SERRA.

JOSE SERRA.

few minutes the in- 65 machine, 70

only necessary for 75 sphere so as a handle to remove the two 116 

